\frame[containsverbatim]
{
  \frametitle{messages.xml skeleton}
  {\color{blue}\sl Blue} = things you will edit
{\scriptsize
\begin{Verbatim}[commandchars=@\[\]]
<?xml version="1.0" encoding="UTF-8"?>
<MessageCollection>
  [@sl@color[blue]Plugin info]

  [@sl@color[blue]Detector info]  

  [@sl@color[blue]Bug pattern info and messages]
  
  [@sl@color[blue]Bug code info and messages]
</MessageCollection>
\end{Verbatim}
}
}
